UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g6R+Rlu1gTY7/gkSpecJ94H15rpQ98EHPXfg/DsRAMU=' 
WHERE 
  key_id = '589b9304abd8a1d5f32cdc3a66822c96f7ca197bf25417e47c3641d08ea53fed' 
  AND (
    token = 'g6R+Rlu1gTY7/gkSpecJ94H15rpQ98EHPXfg/DsRAMU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029